Locking mechanism.



E. HENRWSON & A. L. WEDERIGKSON. LOCKING MECHANISM. i APPucAwN man om.w. 191e. Lm@ mmm my 17, 191?. v 2 SHEETS-SHEET 1.

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E. HENmKsoN L A. L'. FREnEmcKsoN.

vLOCKING MECH/mmm. APPLicATmN mw ocT.12, 191s.

Patented July 1T, 1917.

2v SHEETS-SHEET 2.

1er/ferret l nements) 1\e.ovteemersesrrseo,` AND entere; L.VFREDEMGKSON@ oF Heerroesoolmeerle Foeomeomeerromeh ooeeeeeefoeeoessleltoesro were@ Wemmel. @Meern emmers F New 1 9 Application filedDotohl'l;

To! all whom 2f may @onrein t Be;y it fknonn' ,thetifwe,EMeNuleLrlEshIlS-e. soN `end ARTHUR ,Li FesprmoKsoNT-f Citizens: ofthe, U11ited-Stetes,;. residingetl Wethersfield. `end Hertford,` i.respeetireln s in ..\.the; .r County;` of :Hertford end Sttte of f1Conrleeti out, .here l invented: eeenten 11e.W.. -.end lisefulf:Improvements eine Looking,MeehenismQQgof :l Whiohs-the tollowing ris-a`speeifreetionlr This inventonreletesf toifloekfilgxmeoher mism.,` Whiledocking `ineehmsnol .irlyolring;e. our; `inrentiontis -susoep e totgenetelluseg it is ofperteuleriltlity, .henineorporeted in or fornniligyperthroflefturret lthMbeingm intendedin thisfeldrto;loehlthertlirret,imsi its indeXed positions;Thetbeltiis/redeemed 1 loy e springend one otJthe primary purposes, of.-;thenventon, istthetpro'iision. of@ meensswherehy ethefeifeettot the..spring .isti vrtnellytonly; utilized when the .boltts in active,position end also when iti-lis being moved to... such` ireletiontgthespring lett suelir' tmesbeing @enable` of; applying e powerful yet,slowuthrust, to thebolt; 'Inntheheesexofe turretr,there1Willnloe`etl,p,h1'reality 1ofi seidl holtssgenerelly two., f

Imths drawings accompanying endlferm ing` part of the presentspecification We shown ini ldetail o.neleohyenelettrorne; of. :emi-,Jbodimentlof Athe l,inwentonswhieh will {loe..set-,-=J forth fully inVthe, following-v,cleseription. Wey dol-vloot restrict fourselres to:this-exact clisclqsnre; .We :ma-y depart therefrom ine"several;.respente.,` Within theseope ofgthe. im.S vention ,defined bythepleirnsxiollewing seid clescriptionf Referring to; said dran/ings.;-

Figure -l isvertieel section l `of e. turret;` and" part of,;}the slidewith; ,loking meQha--, nism for` the,turretlinyiolying the inveIi-t.;tiong Fig.2 ,-is :a trensversel-seetionrons thefline, 2%2`oglrliierg;l,lookin`g inthegdireetion offsy the arrows .andShowingtheloekingiring inI full.x lines, e ,part of` V`thegslideebeing`in ,seei' tion. Like t characters yrefer tto, like lp arts nlboth.;views., i

The use `nii this, locking mechanismislnou; restricted ite-anyparticular 'eldrt'but it is. of espeeiel eclyentegewhen .employedineonjunotion Withf e,.turmtet` WhielrL that de-;. n9teel by t, 5:ens-.exampler This f turret een speifietippfqf Letters Betere.

Patented Jelrlb 191k?- .191m serien Ne lessee.

shown .turnslpnthe hollow stucl` (er-pivot@ eXteedrlstfrom the Slidell7theexs fofthem55 turret iin-,the present Case-being horizontal, y;although this is a small point es mey be l :'lnferrf-ed.. Through thestud jor` pivot 1Athe holten shefts 8, 9 end 10 i extend Thesethheeshefts hre ooneehhio end ere supldort# eo eclfet` atheir\areer`end` portions bythelicler, 7. The shztftwS end the adjnncts `iminef`detely@ supported thereby .Const/inde e Pfhh of ,-lthe indexingmeehenismnnd therefore need not be*described,` The inner shaft- 10H55constitutes e pent .i of4 the slideA ecljustingm meghenism, and4 it"therefore, n with 5 its; aci cesser-ies l requires `nQ` r deseription.The"V in; t telhiledietel .sheft Jis Common to, hothmhe;A indemne ,endthe loolo'lhg;meohenism- Atto its ferrelld end trney have festenedthere;

to eswby keying the hub `lof4 thei hands.leserA i lln-eetng fes i ,e`oonyeneuomrree11s for .hlrn-` l ing, seid :shaft 1x9- :l The; letter,et v*its reel? end;

is showmproviclecl With e coller or 4bzrnf'ljn' l2 heyingtheupstnnclngerm 13` by Whienr, other suitable instrumentelities not `e`part,`

of the ypresent t invention,y sets: Vthe indexing mechanism intoaction., With thisrcollerror hehdf howeyer, isessoeetedmeehs whereby feothe locking mechanism, herein-afterr more; particularly `described is.,`operetedf; The rearlportion. of the, turret 5 hiLSLan inwardly?extending flanged 14e; proyiding e i rabbetjto reoeye-fthenrlg`ll-eet'ng .es e sut1eb1e`85 keeperfor Vone Mor more bolts, thiswrngloeing giinited to the turret in, some L.convenientmJ wayvns by the pins16 of whichlthereuiney be anyfsuiteble number. The ringkf'hes ,on itsVbeelqthe segments', 171, 4the outer surfaces 90 of Whichztre flush withthe eirumfereneeof l theengy` These segments are separated.es,`

et 181to .produce bolt-,receiving spaces. The several segmented? mightbe consi(leregil,tol1 be :lytslottecl or interrupted lienge, thefjslotslbeinglthe lspaces 18h11@ two eliemetrieellygl4 opposite slots being4edgipted to siinultzr-` neogusly receive the tipqportions. oftboltsas v19 `Whieh :are renlilyinovable toward; and frointheexis of motion"of;tl1e`turret. As 100 showntherej'are two of `these bolts` although:thisrmzty. fn'otnlneys `be `necessary. '[t\q is generally the; custom,however,V to'l provide L this number and to have them diemetrieally;opposite,sshownv The. vSlide 7-m2LyJO`e `105 equipped Withnstrps .asfastened thereto.

as by screws 21, theystrips being arranged in pairsv and each pairconstituting a convenient guide for anI intermediate bolt.

'In the present case both bolts are advanced by spring means, andalthough two ,springs are shown for vthis purpose, this thrust of thespring or springs is not applied thereto.

The results in question may be obtained 1n a great variety of ways,although means Vquite suitable for this purpose is illustrated and willnow be set forth. Surrounding the outermost hollow or tubular shaft 8where said shaft extends into the slide 7, is what ywe consider a -boltactuator 22. This bolt actuator'fin the organization Ashown functionsasa cam. As illustrated it consists of practically duplicate sections 23and 24. We speak of these sections as practically duplicate; they are,but there is a slight difference between them, as we will hereinafterpointout. lh-en the sections 23 and 24 are assembled to produce theactuator or cam, the vlatter is spaced or separated from the shaft 3,sothat said actuator can freely turn without interference from said shaft.The sections/23 and 24 are connected for relative movement, and anysuitable means may be provided for this purpose, the screws 25 beingshown. The said screws extend through plain bores in the section 24,through sockets as 26 in the section 23, and are threaded into thethreaded holes 27 of said sections 23 which open into the respectivesockets 26V centrally of the bottoms thereof. The threaded holes 27receive the screw plugs 23 which back up the tips of the assemblingscrews 25 and actas adjustable stops to hold said assembling orconnecting screws 25 in predetermined ad- -justed position. Thefstraightfiat edges of the sections 23 Vand 24 it will be noted are separated,the space between them being denoted by 29. It will also be observedthat the 'heads 30 of the connecting screws 25 are valso likewiseseparated from the adjacent section 24.V In the sockets 26 are coiledsprings 31 fittingA against the bottoms `of said sockets and alsoagainst the inner face of the section 24, the springs surrounding4v.theshanks ofthe screws 25 and tending constantly to spread orseparate said sections 23'and 24. The reason for this will behereinafter'set forth. The bolts 19 are furnished with projections orstuds as 32 which may -as shownconsist of anti-friction rollers eX-tendingfinto the slots 33 of the respective sections of the actuator 22..Each slot 33 has two portions as 34 and 35, the portions 34 being onarcs struck from the axis of motion of the actuator 22, the portions 33,however, being cammed or bent inwardly. The portions of the respectiveslots merge into each other gently or without any break, so as to insureproper cam action.

As will be understood the actuator 22 serves as a convenient means forreciprocating the bolts 19 together. Vhen the actuator is turned in onedirection or as indicated by the arrow in Fig. 2, the bolts will beretracted or drawn back, whereas on opposite motion of said actuator theadvance or forward movements of the bolts will be caused. The hand leveror arm 11 serves as a proper prime agent for effecting through suitableintermediate parts the requisite motion of the actuator. This arm, itwill be recalled, is carried by the inter mediate shaft 9, havingfastened to its rear the collar 12. Ve have shown in dotted lines inFig. 2 the arm 11. From the band or collar 12 depends the bent arm oreXtension 36 which projects into the notch 37 on the section 23 of theactuator 22. The arm 11 is shown as occupying its normal position insaid Fig. 2. When it is` swung up the bent extension 36 will be movedtoward the observer in Fig. 1, thus causing the actuator 22 to followthe arrow applied thereto in Fig. 2. This causes the two rollers 32 totravel along the ineffective or concentric portions 34 of the two slots33 and enter the active or cam portions 35 of said slots. As soon as therollers enter the cam or effective portions of the slots, the bolts areretracted. On opposite motion the reverse action occurs.

It will be noted that the springs 31 tend constantly to separate thesections 23 and 24. Vhen, therefore, the studs or rollers 32 have pasedinto the effective portions 35 of the two slots the springs will have soseparated the sections 23 and 24 that the section 24 will abut againstthe screw heads 30, thus preventing further movement apart of the twosections beyond which point or as the actuator 22 continues to turn, therollers 32 will enter the effective portions 33, the actuator at thistime being virtually a rigid plate so as to non-yieldingly draw back thetwo bolts which have been drawn out of their notches 18. On the backwardmovement of the actuator or in a direction opposite that shown by thearrow in said Fig. 2. the cam portions 33 advance the bolts and justabout the time the anti-friction rollers or studs 32 enter theineffective portions of the slots 34, the section 24 will have passedfree of the heads 30, so that the springs 31 become effective for againseparating said sections 23 and 24 and through the latter applying theireffect to the bolts to slowly yet springs 31 is taken from the two bolts19 just after the latter' have commenced their retractive movement,which 1n the present case occurs just about the moment the studs' oranti-friction rollers 32 enter the .cam portions 35 of the slots 33. Atthis time the actuator 22 is being advanced. At approximately the pointthis occurs the separation of the sections 23 and 24 is arrested by thesection 24 striking the heads 30, so that on the final and' in factgreater part of the retractive movement of the bolts, there is no springpressure applied thereto. As the actuator 22 moves in the directionopposite the arrow, the bolts are advanced as the studs travel theeffective portions 35 of the slots and just as they enter theineffective portions 311-. thereof, the section 24 will pass free of theheads 30, so that the effect of the springs is then received by the twosections 23 and 24C and applied in turn to the bolts on the final partof the advance movement thereof, so that the bolts will be set with afinal, powerful yet slow pressure.

It will be remembered that the bolts are guided by the strips or guidemembers 20, the opposite faces of which are parallel for this purpose.The outer faces 40 of these guide members are on a taper which isinward; that is to say the outer face of the respective guide membersconverge inwardly and bear against walls of slots as 4:1 in the slide 7.The screws 21 to which I have referred are tapped through hollow screwsl2 which have a threaded connection with the slide 7 By running thesescrews 42 inward the guide members 2O can be correspondingly operatedand owing to the tapered surfaces 10 bearing against the walls of theslots 41, said guide members will be moved toward each other to take upwear therein.

What we claim is:

l. The combination of a locking bolt, spring means to advance the bolt,means for reti-acting and advancing the bolt, for removing the pressureof the spring means from the bolt when the same reaches a predeterminedpoint in its retractive movement and for reapplying the pressure of saidi spring means to the bolt when the latter reaches a predetermined pointin its advancing movement.

2. The combination of a rotary turret and its support, a locking boltfor the turret, carried by one of the parts, spring means to `advancethe bolt, means for retracting and advancing the bolt, for removing thepressure of the spring means from the bolt when the same reaches apredetermined point in its retractive movement, and for reapplying thepressure of the spring means to the bolt when the latter reaches apredetermined point in its advancing movement.

3. The combination of a locking bolt, a spring to advance the bolt, andmeans for retracting the bolt and for removing the pressure of thespring from the bolt, when the same reaches a predetermined point in itsretractive movement.

ll. The combination of a locking bolt, an actuator for the locking bolt,a spring acting against the actuator and applying through said actuatorits effect to said bolt, and means for operating the actuator' to effectthe movement of the bolt, the actuator having means to receive thepressure of the spring and for taking the pressure from said bolt whenthe llatter reaches a predetermined point.

5. The combination of a locking bolt, a cam for operating said lockingbolt, a spring to apply its effect to the cam and through the cam to thebolt to hold the latter seated, and means for actuating the cani toeffect the movement of the bolt, the cam being provided with means toreceive the pressure of the spring when the bolt hasbeen moved a certaindistance.

(i. rIhe combination of a locking bolt having a stud, a rocking camhaving a slot to receive the stud, the slot having effective andineffective portions, means for rocking the cam to move the bolt forwardand backward, a spring to apply its effect to the cam and the latter tothe bolt when the bolt is in its operative position, and the cam havingmeans to receive the pressure of the bolt about the time the stud entersthe effective portion of said slot on the retractive movement of thebolt.

7. The combination of a locking bolt, a rock shaft, a cam for retractingthe bolt, connections between the rock shaft and the cam for operatingthe latter, a spring to apply its effect to the cam and the latter tothe bolt, when the bolt is in operative position, the cam having meansto receive the pressure of the spring when the cam has reached a certainpoint in its backward movement.

8. The combination of diametrically opposite locking bolts having studs,a divided cam having slots to receive the respective studs, each slothaving effective and ineifective portions, the studs fitting theeffective portions when the bolts are in locking posi-A tion and the cambeing divided, spring means tending constantly to separate thesectionsof the cam, means for limiting the amount of separation of saidsections, and means for rocking the cam.

9. The combination of a plurality of locking bolts, a sectional cam, onesection being socketed and the other having bores opening into thesockets, both sections having cam slots comprising effective andineffective portions, the bolts having studs to enter the ineffectiveportions when the bolts are in operative positions, screws extendingthrough the bores and tapped into the socketed section ofthe cam,'thescrews having heads to limit the amount of separation of the sections ofthe cam, and springs insaid sockets, tending constantly to separate thesections.

10. The combination of a plurality of locking bolts, a sectional cam,one section beingl socketed and theV other having bores opening into thesockets, both sections havingy cam slots comprising effective andineffective portions, the bolts having studs to enterthe ineiectiveportions when the bolts are in operative positions, screws extendingthough the bores and tapped into the socketed section-of the cam, thescrews having heads to limit the amount of separation of the sections ofthe cam, and springs in said sockets, tending constantly to separat-ethe sections, and other screws backing up the iirst lmentioned screwsand carried by the socleted section.

Intestimony whereof we aHiX our signa- 0 tures i-n the presencev of twowitnesses.

EMANUEL HENRIKSVON. ARTHUR L. FREDERICKSON.

Witnesses:

HEATH SUTHERLAND, W. M. STORRS.

Copies of this patent mayybeobtained' forve cents each7 by addressingAthe Commissioner of Patents,

Y Washington, D. C.

